ABB AC 800M

CI854 and TP854 – PROFIBUS DP-V1 Interface Appendix A Hardware Units
166 3BSE 027 941 R301
Functional Block Diagram
Figure 39. Block Diagram – CI854
CEX-Bus Interface
+5 V / +3.3 V
+24 V
Communication
Communication
Extension Bus
DC/DC
Converter
CPU-Kernel and Memory
PROFIBUS Master ASIC
Line Redundancy Unit
RS485
PROFIBUS A
PROFIBUS B
RxB
RxA
F
R
Extension Unit
Communication
Extension Baseplate